do not entirely put your trust in new projects, even new bounties are showing up too, I pity you if you don't know how to patiently do some research
Research first and join several project is our safety, must become priority don't ignore it. Until now there is no specific guide to choose " legit " project but I'm sure we already have experience as the best teacher. This time, trend is in up mode, new project coming with out permission with ( sometimes ) unrealistic target. Be careful, always use your brain ( logic ) not dream ( imagination ) to calculate target and reduce risk. Do your best and never take project that we should send money to get bounty reward or give our private keys as loyalty sign.
Currently, there are many projects that offer several advantages that are not shared by other projects. But if what is offered is not logical, then leave the project. It's hard to find good projects now, new projects only end up scamming or have no value in the market.